McKesson TRUE METRIX Blood Glucose Control Solution 3 mL Level 2 - CaseBlood Glucose Control Solution McKesson TRUE METRIX 3 mL Level 2 The blood glucose control solution lets you check testing strips for accuracy It's suitable to use with newly opened packages of test strips True Metrix control solution Level 2 is available in a 3 mL vial It works with McKesson True Metrix and True Metrix PRO blood glucose testing strips only It has a set amount of glucose to mimic actual blood for a precise result